新型电力电子磁性材料在微型电流互感器中的应用与分析  

Application and Analysis of Novel Power Electronic Magnetic Materials in CT

作　　者：曾晔 李春来[2] 兰雄 叶伟洋 ZENG Ye;LI Chunlai;LAN Xiong;YE Weiyang(Department of Electrical and Information Engineering,Guangdong Baiyun University,Guangzhou 510000,China;Department of Electronic and Information Engineering,Heyuan Vocational Technical College,Heyuan 517000,China;Guangdong Yada Electronic Industry Co.,Ltd.,Heyuan 517000,China;Guangdong Heyuan Xinda Quartz Electrical Industry Co.,Ltd.,Heyuan 517400,China)

机构地区：[1]广东白云学院电气与信息工程系,广东广州510000 [2]河源职业技术学院电子与信息工程系,广东河源517000 [3]广东雅达电子股份有限公司,广东河源517000 [4]广东河源信大石英电器有限公司,广东河源517400

出　　处：《电工技术》2021年第23期115-117,共3页Electric Engineering

基　　金：河源市2019年度省科技专项资金(“大专项+任务清单”)项目(编号2019007)。

摘　　要：电流互感器(CT)是自20世纪60年代以来就被常用在电气测量中的一种特殊变流器,通常这些互感器的磁芯是用软磁材料制成的,而这些互感器材料的选择及其磁特性影响着互感器的参数。为了使仪器尽可能灵敏,采用最大相对磁导率超过50000的软铁磁材料制作磁芯,这类软磁材料通常包括坡莫合金(含80%镍和20%铁的合金)、由约80%过渡金属(主要是Fe、Co)和20%类金属(B、Si、C)组成的超微晶,根据这2种材料的误差特性、绝缘特性及热特性,分析对应CT的性能。Current transformer(CT)has been used as a special transformer in electrical measurement since 1960s.Usually,the magnetic core of these transformers is made of soft magnetic materials.The selection of these materials and their magnetic characteristics affect the parameters of the transformers.In order to make the instrument as sensitive as possible,soft magnetic materials with maximum relative permeability over 50000 are used.This kind of soft magnetic materials usually include permalloy(including 80%nickel and 20%iron),super microcrystalline composed of about 80%transition metals(mainly Fe,Co)and 20%metalloid(B,Si and C).Based on the error characteristics,insulation characteristics and thermal characteristics,the performance of current transformer are analyzed.

关 键 词：电流互感器 坡莫合金 超微晶 比差 角差 

分 类 号：TM452[电气工程—电器]